The fuel valve, or fuel petcock, is a small shut-off valve that controls the flow of liquid fuel. ATVs and UTVs, like motorcycles, have fuel tanks that are situated higher than the carburetor and fuel feeds are controlled by gravity. Most older designs incorporate a 3-position fuel petcock valve: ON, OFF, and RESERVE. The RESERVE setting is used to access the bottom portion of the fuel tank. This was due to compensate for the lack of a proper fuel gauge. Today’s modern systems use an automatic, vacuum operated petcock that often include a PRIME position as to allow fuel flow into the carburetor without having to fire the engine. A faulty fuel petcock, like any fuel delivery system problem, can cause issues with your ATV or UTVs performance. Sputtering, stalling, failure to crank, and poor idle quality are some of the ailments that can be attributed to a bad fuel valve. This relatively simple and inexpensive fix can save you valuable time, effort, and money versus going out and replacing the entire fuel system. HQ Powersports specializes in high quality maintenance parts and performance parts for 4-wheel off-road ATV and UTV powersports vehicles. We stock a full assortment of brand new, aftermarket replacement fuel petcock values for ATVs and UTVs by Bombardier, Kawasaki, Polaris, Suzuki, and Yamaha.